construct a url with input parameters from json

Question

I am receiving a json response to construct a parameterized string in JavaScript. However I need to pass actual parameters from JavaScript on some properties e.g. custom_input has to change dynamically.

[{ "road_name_gr": "custom_input" "town_code" : 1 }]

Then I read that json file and convert that to a url.

cql_filter = new URLSearchParams(json_file).toString();

output: town_code=1&road_name_gr=custom_input

However I have to "modify" the url to accept input.

e.g. 'town_code=1&road_name_gr=' + my_custom_input

Jiho Lee · Accepted Answer · 2020-10-26 12:45:46Z

1

Try this:

my_custom_input = decodeURIComponent(my_custom_input) // URI Decode
let input_params = new URLSearchParams(json_file);
input_params.set("road_name_gr", my_custom_input);
cql_filter = input_params.toString();

You have to set parameter before obtain string value.

edited Oct 26, 2020 at 12:45

answered Oct 26, 2020 at 11:38

Jiho Lee

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3 Comments

csandreas1 Over a year ago

my_custom_input is in greek. I get : town_code=1&road_name_gr=%CE%A3%CE%91%CE%A1%CE%91%CE%A3 . Also it should not set, it should replace.

Jiho Lee Over a year ago

The set method overwrites existing field.

Jiho Lee Over a year ago

Try this: my_custom_input = decodeURIComponent(my_custom_input) on top of block.

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